Are you using a browser that doesn't support JavaScript or have you disabled JavaScript?

If you have disabled JavaScript, you must re-enable JavaScript to use this page.
Or you can view this record using the Text Only Format.

[Keyword='INFRARED']

NOAA AVHRR Data over Canada

Entry ID:
CANNRCANCCRSCANAVHRR

Summary

Abstract:
The Advanced Very High Resolution Radiometer (AVHRR) flown aboard the Tiros-N series NOAA satellites measures radiation in the visible and infrared spectrum region. The AVHRR is a cross-track scanning system and features four or five spectral channels: two visible and three (two on the four channel AVHRR) infrared channels. The odd numbered satellites (NOAA-7 and -9) carried the five channel ... AVHRR. For the Tiros-N, NOAA -6, -8, and -10, Channel 5 is a repeat of Channel 4.

The instantaneous field of view (IFOV) is approximately 1.3 milliradians yielding a resolution at the satellite subpoint of 1.1 km for a nominal altitude of 833 km. The scanning rate of the AVHRR is 360 scans per second. The swath is 2048 pixels wide. Typically a few swaths will cover most of Canada. Coverage is 100% of Canada.

1 km and 4 km NOAA AVHRR imagery are also processed on the CCRS GeoComp System to produce geocoded and composite products. Please see the datasets descriptions listed for the Manitoba Remote Sensing Centre (MRSC).

An AVHRR composite of Canada in JPEG format is available for downloading through GeoGratis free of charge and is subject to copyright restrictions and disclaimer. Please consult the section 'Earth Observation Imagery' at http://geogratis.cgdi.gc.ca for additional information.This data is used primarily for natural resources data management and provides excellent educational material. Spatial Data Organization Information -